50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
#include <world/chunk.h>
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#include <glad/glad.h>
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#include <stddef.h>
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void tc_upload_chunk(tc_chunk_s *chunk)
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{
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// If the chunk has no mesh, it's probably only air.
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if(chunk->num_vertices == 0)
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{
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return;
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}
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if(chunk->vao != 0) glDeleteVertexArrays(1, &chunk->vao);
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if(chunk->vbo != 0) glDeleteBuffers(1, &chunk->vbo);
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glGenVertexArrays(1, &chunk->vao);
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glBindVertexArray(chunk->vao);
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glGenBuffers(1, &chunk->vbo);
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glBindBuffer(GL_ARRAY_BUFFER, chunk->vbo);
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glBufferData(GL_ARRAY_BUFFER, chunk->num_vertices * 5 * sizeof(float), NULL, GL_STATIC_DRAW);
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glBufferSubData(GL_ARRAY_BUFFER, 0,
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chunk->num_vertices * 3 * sizeof(float),
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chunk->vertex_positions
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);
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glBufferSubData(GL_ARRAY_BUFFER,
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chunk->num_vertices * 3 * sizeof(float),
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chunk->num_vertices * 2 * sizeof(float),
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chunk->vertex_uvs
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);
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glBindVertexArray(0);
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}
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void tc_draw_chunkloader_zone(tc_chunkloader_s *loader)
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{
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tc_chunklist_s *list = &loader->chunklist;
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for(tc_chunklist_entry_s *current = list->first; current != NULL; current = current->next)
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{
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if(current->entity == NULL)
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{
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return;
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}
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tc_send_pointer_to_entity(current->entity, "draw", 0);
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}
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}
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